Locking device for loose-leaf binders.



J. SGHADE, JR. LOOKING DEVICE FOR LOOSE LEAP BINDERS. APPLICATION FILEDAPR. 4, 1911.

1,024,525, Patented Apr. 30, 1912 Ff P Ms L W mnlnuillll P l'uiiiim '7 W7W 1W 13 up Wu: oz

entrain snares PAEENT ent re.

JOHN SCHADE, JR-., OF NEN YORK, N. Y., ASSIG-NOR F ONE-HALF TO LOUISFINK, OF NEW YORK. N. Y.

LOCKING DEVICE FOR LOOSE-LEAF BINDERS.

Specification of Letters Patent.

Patented Apr. 30, 1912.

Application filed April 4, 1911. Serial No. 618,878.

To all 107mm "it may concern:

tie it known that l, JOHN Flelmnu, J12, a citizen ot the l nited States.and a resiileut ol' the borough of Brooklyn. county of l\'in cs, cit andState of New York, have invented certain new and useful lmprovements inLocking Devices for Loose-Leaf lillltltl'h, of which the following is aspecilication, accompanied by drawings.

This invention relates to locking devices for loose leaf binders and theobjects of the invention are to improve upon the construetion of suchdevices, increase the strength and durability of the component parts ofthe device to enable the binder to receive and securely hold bulkycontents without breaking or getting out of order, and affo d ready andconvenient means for manipulating the locking devices from such positionon the binder, as at the side. that inter 'lerence from the contents ofthe binder is obviated.

Other objects of the invention are to enable the movable. binding plateor frame to be securely locked and clamped in position on the b.-"-krods with small. effort and by means of devices which will withstandconstant and hard usage without breaking, and to construct the device insuch manner thatthe operative locking parts are protected so that theywill not. become bent by usage or blows and renderedinefficient, andrequire repairs.

Further objects of the invention will hereinafter appear and to all ofthese ends the invention consists of a locking device for loose leafbinders embodying the features of construction,combinations of elementsand arrangement of parts having the general mode of operationsubstantially as hereinafter fully described and claimed in thisspecification and shown in one of its preferred forms in theaccompanying drawings, in which Figure l is a perspective front view ofa device embodying the invention; Fig. 2 is a horizontal sectional Viewtaken through the top or mo.able binding frame or plate; Fig. 8 is atransverse sectional View taken, on the line 8-3 of Fig. 2 looking inthe direction of the arrows; Fig. 4 is a transverse sectional view online 44.- of Fig. 2 looking in the direction of the arrows; Fig. 5 is adetail top plan view of one of the locking plates or washers; and Fig. 6

is a detail top plan view of another of the locking plates or washers.Fig. 7 is a plan view of a modified form of washer.

lteferring'to the drawings, A and B represent the binding plates orframes for a loose l at binder. In this instance A is the base plate andl) is the movable plate, which is movable along the back rods oruprights (l. toaccommodate a greater or less number of papers. The backrods C maybe formed in the usual manner in sections detachably connectedone tothe other as by means of suitable screw threads (not shown), and

each section may he provided with an aperture D through which aninstrument may be inserted to unscrew the sections. 3y this means theback rods C- may be made as long or short. as desired, depending uponthe use of the device.

The binding plates or frames A and B are preferably constructed outofsheet metal and bent into U -shaped form as shown in l ig. 1. Thisincreases the strength of the binding frames, and affords a convenientconstruction for securing suitable covers to the frames. The back rods 0as shown are suitably secured to the. base plate A and pass through themovable or top plate B and means are provided for adjusting and lockingthe movable binding plate l) at any desired height on the back rods thebinder the papers to bebound are punched and inserted over the rods Cbefore the movable plate B is placed in position, and then the plate Bis placed over the. rods C and adjusted and clamped on top of the papersor at any desired height.

Great inconvenience has been experienced in locking devices heretoforemade, because of the liability of the parts to become bent or broken,requlring repa1rs or the purchase of new devices. This invent-ion isdesigned to afi'ord a strong and durable locking de-f .;t

vice which may be used with papers of any bulk and with papers of anydesired dimensions. The stack of paper may be very large and heavy andstrong locking devices are required to keep the papers in position. Thelocking devices should be of such construction that, they will withstandblows and hard usage in case the binder for instance should fall fromthe desk or shelf.

As shown, the movable binding frameor plate B is provided with lockingdevices in It will be understood that in using the form 0i split ordivided Washers or plates E and ll. These plates as shoWn are providedwith apertures G and they are divided or split at H. Preferably notchesJ are provided in the Washers opposite the divided portions H. to afforda greater spring action between the parts of the Washers. One sideoteaeh Washer is preferably bent at an angle at K and at l; and theportion i is provided with the forked projection 0, while the bentportion L is pro sided with the fork P.

The split; plates or \vashers I) and i are suitably secured to thebinding irame l: between the sides oi the same as by means of rivets Q.The portions of the plates 1) provided with the tabs 0 and fork l areleft tree to move and unsecured to the binding plate I. A locking rod itextends longitudinally of the plate B between the back of the plate andthe lOtflilllfL devices E and F. This locking red It is provided with aWorm i l at one end meshing; with the fork t) on the plate E. At theother end the rod R is provided with a eircuniferential groove T meshingwith the fork P on plate F. The rod R is provided with the squared end lover which is adapted to lit a key V for turning the rod about itslongitudinal axis. Htops a re preferably arranged adjacent the free endsof the plates 1') and i to limit the outvard inovcn'ient of the parts.

in the operation of the device the binding rods (3 are thrust throughthe apertures (l in the locking devices or plates and by turnilng thekey f the rod it is rotated about its oven axis. and the tree portionsof the plates l) and F are drawn inwardly toward each other, thustending to close the apertures G and cause the plates E and F to irripthe posts or rods ti. By turning the key V in the opposite direction thelocking devices are loosened.

By means oi my device the top binding ilate E is firmly clamoed in andesired l l position by devices which are simple and strong and not,liable to get out oi? order. It Will he observed that the squared end oflocking rod ll extends at oneend of the binding plate l so that the keyV'yi'or tnanirmlating the rod is located at one side oi thebinder andtree and clear ot' the contents oil. the binder. By this constructionthe locking devices may be readily manipulated with small effort and byretrieving the rename key there are no projecting parts to be broken Thelocking devices are all inclosed Within the sides of the U shapedbinding! plate B and are thus protected from injury.

My device is simple and cheap to manufacture and highly eilicieni'i inoperation for the purposes for which loose leait hinders are used.

in Fig. 7 a modified form of washer is shown comprising two parts 2 and33 formed substantially like the parts of the Washer shown in Fig. 5 butseparate from each other and pivoted together by the pin l extending);through the ears.

I. claim and desire to obtain by lmtters Patent the following:

1. A locking device t'or loose leai hinders comprising back rods and amovable binding plate, split or divided lot-king plates connected tosaid binding plate at one side of the divided portion, leaving theremainder of the plates free to more, said iree portions oi the lockingplates being provided with forked projections, a locking rod extending"longitudinally of the hinding plate and. having a Worm at one endmeshing with the pro jections on one locking plate and a circumferentialgroove cooperating with the projections on the other locking plate,whereby rotation of the rod about its own axis clamps and unelamps thelocking plates.

2. A locking device for loose leaf hinders comprising hack rods and amovable binding plate bent alongits longitudinal length into U shapedform, locking devices in the term of split or divided washersencirclingthe back rot s and mounted on the hinding plate between thesides thereof, projections on the movable portions of said lockingdevices, a locking rod extending longitudinally of the binding plate andlocated in the groove formed at the back of the U shaped binding plate,a worm at one end of the l()('l{ ing' rod and a groove at the other endengaging the projections on the locking devil-es respectively, and meansi or rotating;- said locking rod about its longitudinal axis to tightenand loosen the locking devices In testimony whereof I have signed thisspecification in the presence oi two subscribing Witnesses.

JOHN SUllAlHC, .ln.

Witnesses Annohn llnmvmauiv, llnivny A. ltonnn'rs.

